US2012121975A1PendingUtilityA1

Surface modified glass fibers

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Assignee: RAJARAM MOHANPriority: May 21, 2010Filed: Nov 23, 2011Published: May 17, 2012
Est. expiryMay 21, 2030(~3.8 yrs left)· nominal 20-yr term from priority
Inventors:Mohan RajaramGeorge Zguris
H01M 50/429H01M 50/414H01M 50/437C03C 25/66H01M 50/44H01M 50/4295H01M 10/10C03C 13/00H01M 10/121H01M 10/06Y10T428/298Y02E60/10
45
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Claims

Abstract

Compositions including glass fibers with a high surface atomic percentage of oxygen bonded to silicon wherein the fibers form at least part of a battery separator or other battery component.

Claims

exact text as granted — not AI-modified
1 . A composition comprising:
 glass fibers with a surface atomic percentage of oxygen bonded to silicon of at least about 45 percent;   wherein the fibers form at least a part of a battery separator.   
     
     
         2 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is measured by XPS at about 532.6 eV. 
     
     
         3 . The composition of  claim 1 , wherein the glass fibers comprise between about 50 weight percent to about 75 weight percent silica, between about 1 weight percent to about 5 weight percent aluminum oxide, and less than about 25 weight percent sodium oxide. 
     
     
         4 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is measured to a depth of between about 100 and 150 Angstroms from the surface of the glass fibers. 
     
     
         5 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is at least about 48 percent. 
     
     
         6 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is at least about 51 percent. 
     
     
         7 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is at least about 54 percent. 
     
     
         8 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is at least about 57 percent. 
     
     
         9 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is at least about 60 percent. 
     
     
         10 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is at least about 63 percent. 
     
     
         11 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is at least about 65 percent. 
     
     
         12 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is in the range of about 45 to about 65 percent. 
     
     
         13 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is in the range of about 51 to about 65 percent. 
     
     
         14 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is in the range of about 54 to about 65 percent. 
     
     
         15 . The composition of  claim 1 , wherein the surface atomic percentage of oxygen bonded to silicon is in the range of about 60 to about 65 percent. 
     
     
         16 . The composition of  claim 1 , wherein the glass fibers comprise between about 60 weight percent and about 70 weight percent silica. 
     
     
         17 . The composition of  claim 1 , wherein the glass fibers comprise between about 0.5 weight percent and about 30 weight percent bismuth oxide. 
     
     
         18 . The composition of  claim 1 , wherein the glass fibers have an average diameter between about 0.1 and about 10 microns. 
     
     
         19 . The composition of  claim 1 , wherein the glass fibers have an average diameter between about 0.5 and about 2 microns. 
     
     
         20 . The composition of  claim 1 , wherein the glass fibers have an average diameter between about 0.5 and about 1 microns. 
     
     
         21 . The composition of  claim 1 , wherein the glass fibers have an average diameter between about 1 and about 2 microns. 
     
     
         22 . A battery, comprising:
 a first electrode;   a second electrode, wherein at least one of the first and second electrodes comprises lead;   a separator between the first and second electrodes, wherein the separator comprises glass fibers with a surface atomic percentage of oxygen bonded to silicon of at least about 45 percent; and   an electrolytic solution.   
     
     
         23 .- 43 . (canceled) 
     
     
         44 . A lead acid battery, comprising:
 a positive electrode;   a negative electrode;   an electrolytic solution; and   a means for shifting the voltage at which hydrogen is produced at the negative electrode by between about 10 mV and about 120 mV.   
     
     
         45 . The lead acid battery of  claim 44 , wherein the battery comprises a means for shifting the voltage at which hydrogen is produced at the negative electrode by between about 30 mV and about 60 mV.

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